fkooman\OAuth\Client\Scope::__construct PHP Method

    public function __construct(array $scope = array())
    {
        foreach ($scope as $s) {
            if (!$this->validateScopeToken($s)) {
                throw new ScopeException('invalid scope token');
            }
        }
        sort($scope, SORT_STRING);
        $this->scope = array_values(array_unique($scope, SORT_STRING));
    }